The Califone Titanium HPK-1530 Washable Headphone is designed to teach students about appropriate volume listening levels when using a headphone. By integrating Sentinel Technology into the earcup, the volume playback level is restricted to the ASHA-recommended maximum of 85 decibels for safe listening practices (this feature can be disarmed for students with special needs).
The HPK-1530 with Guaranteed for Life cord helps students focus more effectively on the task at hand by blocking the highest amount of ambient (external) noise of any passive headset, which Califone has ever offered. Its microphone is also noise-reducing.
School budgets can't afford equipment that won't last the entire year or cause lost learning time and that's why the HPK-1530 with Guaranteed for Life cord is built using more rugged ABS plastic (even its cord is thicker than previous models). But longer lasting doesn't automatically mean student comfort, which is why the ear cushions have also been upgraded to be just as long lasting, but feel softer without the accumulated clammy feeling which can come after prolonged use.
|Automatic Sleep Mode:||If no audio is played through it for 2 minutes|
|Battery Recharge Time:||< 2 hours|
|Battery Usage Time:||> 8 hours (depends on battery and usage)|
|Construction:||Earcups & Headstrap: ABS plastic Earpads: PVC Cord: Polyurethane|
|Dimensions:||8.25x6.3x3" / 20.95x16x7.62cm|
|Frequency Response:||20 Hz - 20 kHz|
|Microphone:||Adjustable uni-directional electret (requires bias voltage between 2 to 10 V)|
|Sentinel Technology:||Level: 85+/- 3 dB (no weighting) Speed: < 20 ms|
|THD %:||<2% (80Hz - 20 kHz)|
|Transducers:||High efficiency 40mm Neodymium|
|Washable:||Neither the headset, nor the cord are washable on this model|
|Weight:||1lbs / 0.45kg|